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<?php |
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namespace TheCodingMachine\Yaco\ServiceProvider; |
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use TheCodingMachine\Yaco\Definition\DumpableInterface; |
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use TheCodingMachine\Yaco\Definition\InlineEntry; |
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use TheCodingMachine\Yaco\Definition\InlineEntryInterface; |
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/** |
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* Fetches a service from the service-providers registry. |
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*/ |
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class ExtendServiceFromRegistryDefinition implements DumpableInterface |
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{ |
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/** |
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* The identifier of the instance in the container. |
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* |
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* @var string|null |
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*/ |
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private $identifier; |
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/** |
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* The key of the service provider in the registry. |
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* |
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* @var int |
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*/ |
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private $serviceProviderKey; |
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/** |
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* @var DumpableInterface |
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*/ |
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private $previousDefinition; |
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/** |
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* @var string |
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*/ |
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private $serviceName; |
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/** |
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* @param string|null $identifier |
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* @param string $serviceName |
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* @param int $serviceProviderKey |
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* @param DumpableInterface|null $previousDefinition |
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*/ |
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public function __construct($identifier, $serviceName, $serviceProviderKey, DumpableInterface $previousDefinition = null) |
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{ |
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$this->identifier = $identifier; |
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$this->serviceName = $serviceName; |
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$this->serviceProviderKey = $serviceProviderKey; |
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$this->previousDefinition = $previousDefinition; |
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} |
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/** |
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* Returns the identifier for this object in the container. |
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* If null, classes consuming this definition should assume the definition must be inlined. |
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* |
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* @return string|null |
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*/ |
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public function getIdentifier() |
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{ |
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return $this->identifier; |
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} |
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/** |
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* Returns an InlineEntryInterface object representing the PHP code necessary to generate |
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* the container entry. |
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* |
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* @param string $containerVariable The name of the variable that allows access to the container instance. For instance: "$container", or "$this->container" |
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* @param array $usedVariables An array of variables that are already used and that should not be used when generating this code. |
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* |
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* @return InlineEntryInterface |
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*/ |
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public function toPhpCode($containerVariable, array $usedVariables = array()): InlineEntryInterface |
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{ |
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$previousCode = ''; |
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if ($this->previousDefinition) { |
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$previousCode = ', '.$this->previousDefinition->toPhpCode($containerVariable, $usedVariables)->getExpression(); |
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} else { |
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$previousCode = ', null'; |
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} |
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$code = sprintf('$this->registry->extendService(%s, %s, $this->delegateLookupContainer%s)', var_export($this->serviceProviderKey, true), |
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var_export($this->serviceName, true), $previousCode); |
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return new InlineEntry($code, null, $usedVariables); |
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} |
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} |
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thecodingmachine /
yaco
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.